Might as well be hanged for a sheep as a lamb...

Ban guns... and I mean actually come up with some magic ray that you can sweep back and forth across this country that would cause all the hundreds of millions of guns not in police or military armories to magically vanish... and the only people really affected would be the sort of upstanding citizens who only wanted to use firearms for lawful purposes such as target shooting, hunting, and self-defense.

People who need guns for bank-robbin' or government-topplin' will always find a way to get their hands on the hardware to do the deed. And if all guns are illegal, you may as well make the scary ones. If you're going to prison, it might as well be for a Sten gun as for a single-shot .22LR.

Besides, if this can be made in the jungles of the Philippines in the early 20th Century, imagine what could be turned out in 21st Century America, where tabletop lathes are common and serious hobbyists have CNC machines?